We are extremely proud of the industry accreditations we have earned at Timberwise. All of the property care services we offer and that our surveyors and technicians undertake are vetted and checked by a number of organisations.

Below you can find a list of memberships and accreditations we have earned:


Formerly part of the BWPDA (British Wood Preservation Association), the PCA is a trade association that represents the property preservation industry. This includes a range of sectors including damp proofing, structural waterproofing, structural repairs and timber preservation. The PCA takes measures to ensure that all its members provide the best practice and technical guidance.
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Which? Trusted Traders

Which? Trusted Traders is an independent organisation, who describe themselves as the UK’s consumer champions. They aren’t influenced by third parties, and all of their judgements are made on the merit and skill of the company in question. They work entirely on the behalf of the consumer to ensure that they are represented, and able to have a clear view of how a company performs.
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TrustMark is the only Government endorsed scheme in the UK that covers home improvement quality in or around a property in the UK. An independent organisation, any business that is registered with TrustMark is thoroughly vetted, and monitored continuously to ensure that they meet TrustMark’s required standards in technical competence, customer service, and trading practices.
View our listing on their website


CHAS is the largest provider of compliance and risk management solutions in the UK. Their Safety Schemes in Procurement scheme is an industry leading standard in health and safety accreditation in procurement, and proves that a company is committed to protecting its employees and the general public from harm.
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Basement Waterproofing Association

The British Waterproofing Association is the trade association for registered suppliers, contractors, and manufacturers of below ground waterproofing solutions in the UK. As well as being committed to ensuring that it’s members maintain a high standard of work, conduct, and practise, the Basement Waterproofing Association encourages the sharing and transfer of knowledge between its members.
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Constructionline has been working with buyers and suppliers for over 20 years. They ensure that suppliers operate correctly under the health and safety standards that are essential for the construction sector. Constructionline maintains relationships for a range of industries and open up opportunities for businesses to access a wide range of procurement contracts and projects.
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SafeContractor are a group who audit companies based on their ability to meet their necessary requirements around health & safety, environmental, modern slavery, diversity, equality, workplace wellbeing, and financial stability. Their accreditation gives peace of mind that our company is adhering to best practise, and that our future is secure.
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Women Into Construction

Women into Construction is an independent not-for-profit organisation that promotes gender equality in construction.

Their vision is to be the construction industry’s organisation of choice for women and contractors, and to change the face of construction, normalising the position of women in the construction industry.
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Checkatrade is a leading independent directory of tradespeople in the UK, committed to helping regular people find outstanding tradespeople. Running strict background checks on every trading company before they are allowed to be listed, Checkatrade ensure that user reviews are clear, honest, and available for other customers to read.
Visit our Checkatrade profile


Helifix logoManufacturers of helical wall ties, fixings & masonry repair systems, Helifix products and installation techniques play an important role in preserving properties of all kinds, and help us to deliver outstanding structural repair solutions.
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Delta Membranes

Delta Membranes provide high performance waterproofing solutions for both commercial and domestic properties.
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